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https://github.com/valitydev/osquery-1.git
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ce2ba6d9c8
The initialization of a logger plugin was confusing. The 'init' step was introduced to allow a daemon to buffer status events before a logger plugin is determined by external/remote configuration. The buffered statuses could then be transferred via a medium other than Glog (the default). To determine if Glog should continue to write statuses to the filesystem the 'init' method returned a Status. Logger plugins should now use a feature method override to select how status logs should be handled.
77 lines
2.2 KiB
C++
77 lines
2.2 KiB
C++
/*
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* Copyright (c) 2014-present, Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD-style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*
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*/
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#include <syslog.h>
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#include <osquery/flags.h>
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#include <osquery/logger.h>
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namespace osquery {
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FLAG(int32,
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logger_syslog_facility,
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LOG_LOCAL3 >> 3,
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"Syslog facility for status and results logs (0-23, default 19)");
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class SyslogLoggerPlugin : public LoggerPlugin {
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public:
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bool usesLogStatus() override { return true; }
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protected:
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Status logString(const std::string& s) override;
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void init(const std::string& name,
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const std::vector<StatusLogLine>& log) override;
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Status logStatus(const std::vector<StatusLogLine>& log) override;
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};
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REGISTER(SyslogLoggerPlugin, "logger", "syslog");
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Status SyslogLoggerPlugin::logString(const std::string& s) {
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syslog(LOG_INFO, "%s", s.c_str());
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return Status(0, "OK");
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}
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Status SyslogLoggerPlugin::logStatus(const std::vector<StatusLogLine>& log) {
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for (const auto& item : log) {
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int severity = LOG_NOTICE;
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if (item.severity == O_INFO) {
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severity = LOG_NOTICE;
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} else if (item.severity == O_WARNING) {
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severity = LOG_WARNING;
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} else if (item.severity == O_ERROR) {
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severity = LOG_ERR;
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} else if (item.severity == O_FATAL) {
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severity = LOG_CRIT;
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}
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std::string line = "severity=" + std::to_string(item.severity) +
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" location=" + item.filename + ":" +
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std::to_string(item.line) + " message=" + item.message;
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syslog(severity, "%s", line.c_str());
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}
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return Status(0, "OK");
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}
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void SyslogLoggerPlugin::init(const std::string& name,
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const std::vector<StatusLogLine>& log) {
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closelog();
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// Define the syslog/target's application name.
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if (FLAGS_logger_syslog_facility < 0 || FLAGS_logger_syslog_facility > 23) {
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FLAGS_logger_syslog_facility = LOG_LOCAL3 >> 3;
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}
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openlog(name.c_str(), LOG_PID | LOG_CONS, FLAGS_logger_syslog_facility << 3);
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// Now funnel the intermediate status logs provided to `init`.
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logStatus(log);
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}
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}
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